Shore-adjusting tool



Jan. 24, 1928.

G. B. BOSCO SHORE ADJUSTING TOOL Filed March 10. 1927 Patented Jan. 24, 19,28.

GEORGE B. 30500, OF CHICAGO, ILLINOIS.

SHORE-ADJUSTING TOOL.

Application filed March 10, 1927. SerialNo. 174,196.-

The main objects of this invention are to provide an improved tool for accurately adjusting longitudinally of each other, the parts of a shore; to provide a shore adjusting tool which may be readily attached to and removed from, the shore so that one such tool may serve a large numbenot shores; and to provide a tool of this kind which is simple and inexpensive to manul acture, and which is easy and certain in operation so that it may be used by even unskilled labor.

An illustrative embodiment of this invention is shown in the accompanying drawing,

wherein Figure 1 is a fragmentary side elevation of a shore to which an improved adjusting tool is applied.

Fig. 2 is a detail in section of the 1m proved tool applied to a strut.

Fig. 3 is an enlarged perspective of the adjusting tool, part of the handle bemg broken away. p g

In the specific torn] herein shown, the improved tool involves the use of a fitting adapted to be supported on one of the struts of a shore and having arranged thereon an operating element or jack located in posltion to engage the other strut for adjustmg the struts longitudinally of each other.

A tool embodying this invention 1s adapted for use in connection with various forms of overlapping timbers, but, in the construction herein illustrated, the tool is applied to a shore comprising telescoping struts 1 and 2.

The strut 1 maybe a post of standard form.

The strut 2 comprises a pair of timbers 3 and 4 arranged in substantially parallel spaced relation on a base 5 and connected together by clamps 6 and 7.

The clamp 6 is the subject of my co-pending application Serial No. 167,697, filed February 12, 1927. This clamp comprises a collar 8 embracing the strut and provided with a keyway 9, in which is seated a wedge 10 adapted to engage one side 01' the post 1 for holding the struts in their adjusted positions.

In the form shown, the timber 4 projects above the timber 3, and its upper extremity is provided With a metal cap or bearing plate 11 for engagement with the jacks of the tool.

As illustrated, the improved tool comprises a supporting member in the form of a fitting 12, adapted to embrace the post 1, and on which is mounted an operating element or jack 13. The members 12 and 13 are preferably malleable castings and the fitting 12 is shaped for use with rectangular struts or timbers of standard dimensions.

The fitting 12 includes a pair or arms 14 and 15 disposed in substantially parallel spaced relation to each other for arrange ment on opposite sides of the strut 1, and being connected adjacent one end thereof by an integral bearing member 16 arranged to grip another 'side face of the strut- 1. Formed in the arms 14 and 15 adjacentthe outer ends thereof, are square apertures 17 arranged to receive a removable locking pin 18, which forms a bearing member adapted to grip the face of the strut 1 opposite the cross piece 16, whereby the fitting grips the post 1 between the members 16 and 18. The pin 18 is removable, so as to permit the fitting 12 to be readily attached to and removed fromthe shore. To secure the pin against being lost, it is connected to the arm 14 by a short chain 19.

In the form shown, the jack 13 comprise a lever arm 20 provided with trunnions 21 j ournaled in the fitting 12 and having a cam part 22 located in position to engage the bearing cap 11. The ends of the trunnions 21 are reduced to provide annular shoulders 23, which engage the arms 14 and 15 to secure the jack against lateral shifting in the fitting. To permit the fitting 12 and jack 13 to be readily assembled in the manufacture of the tool, one of the trunnions 21 is journaled in a recess 24: formed in the arm let. The jack is secured against removal from the fitting by a U-bolt 25 mounted on a flange 26 adjacent the slot 24.

In operation, the fitting 12 is applied to the strut 1, so that by shifting the lever arm 13 in the direction of the arrow, the cam 22 engages the bearing cap 11 to raise the post 1. It the shore is not adjusted sufficiently in one operation of the lever arm 13, the fitting 12 may be slid downwardly along the strut; 1 to maintain the cam 22 in operative relation to the cap 11.

The inventien being intended to he pointerl Hill in the claims, is net to he limited to or by details of construction of any particular enihmlinientthereof illustrated by the dinally of each other.

2. 111 a tool for adjusting a pair of overlappi struts. a fitting adapted to embrace one e; the struts and comprising a pair of spaced arms. a pair of cross pieces mounted en said arms, ene of said pieces being integral with eaicl arms and the oi'her being re movable, a lever plvoiecl on said arms acl acent said ilXQd cross piece, and a cam on said, lerer arranged in alnn' againe! an er:- ireinihy ml" the other slant.

3. in a r leviee oi the elaes rli'ieerihetl, a iit1- ting ailantei l in GliliTJiilLfU nne nf the etrnts uf: an :uljn hie shore. a lever having 't'rnnnions pivoted on said fitting, she'nilders 0n eairl irni'iniene e1 axing; saiil lilting to HLH'HIE said lever again, laiierai. shifting, and a cam (in said lever :n'lap'ted to engage an extremity e? the niher si'i'nt of the shere for adjusting the F1 rut lunariiinlinally ul eaeh miner.

ln an :nljnstahle shnre. lhe emnhinaiimi with a pair ml ereiialanningg struts. elf a lilrie'liarhahly Sl'i'fliI'OLi in em: of raid strnte. lever harin' lrunninns pivoted on, said fit nl trnnnien heing' sealer] in n a flange iiOl'lliECl on saiil Minn. ml islet. a U-h01t 0n eaiil l i-ai' hraeine "air. one trunnion, alnl nn sanl lever arranged in [JOSlUOU tn "the :n'ljaeent extremity of the other GEORGE 15. BOSUO. 

